Degree of correlation of biological attributes in the animals developing at the influence of multiple factors can vary from zero to very high. Genetic possibility of improving economically useful attributes in animals primarily depends on the degree of this correlation.
Keywords: pig production, stock breeding, tandem selection, meat properties, fattening properties, correlation of signs, 100 kg age, early maturity, meat content, carcass length, rib eye.
Natalia Kazmina, Director of Selection Hybrid Centre Ltd. discusses genetic improvement and information support at breeding of thoroughbred pigs.
Keywords: genetic improvement, selection, pig production, software, FIAS software, BLUP, male pig, sow, population, herd, breed, index system, selection sign, prolificacy, rib eye, salted pork fat, pork, replacements, hybrid.
Active application of hybridization schemes and techniques in pig production contributes to high profitability of animal growing farms.
Keywords: pig production, selection, stock breeding, hybridization, heterosis, breed lines, genotype, crossing, Yorkshire, Landrace, Duroc, Hampshire, Pietrain, male pig, sow, prolificacy, female and male parents, herd, population, thoroughbred and crossbred young animals, nucleus, grandparents, thoroughbred animal, genetics, breeding and productive properties, early maturity, nucleus, salted pork fat.
Absolute and relative indicators of young pig growth and development have some clear features, and it should be considered at animal crossing.
Keywords: pig production, selection, interbreed crossing, hybridization, genotypes, growth indexes, fattening properties, baby pigs, young pigs, Landrace, Duroc, Yorkshire, cross breed, productivity, meat qualities, sow, male pig.
Comparative analysis of the chemical composition of muscular and adipose tissue of yelts of the Large White breed and cross breeds with Duroc, Pietrain, Landrace.
Keywords: selection, Large White breed, Pietrain, Duroc, Landrace, chemical composition, meat, pork fat, protein, raw fat, raw ashes, dry matter.
The article discusses the reasons of occurrence and methods of prevention of impairment in reproductive function of breeding boars.
Keywords: boar, reproductive function, impotence, spermatogenesis, fertility, ejaculate, estrus, mount, heterospermic insemination.
Economically grounded planning of the slaughter weight allows improvement of pig farming profitability.
Research confirmed that mongrel pigs have better biochemical blood indicators than young Yorkshire pigs, which is indicative of their higher efficiency.
Pregnancy is a complex physiological process in females of livestock animals of any species, particularly in sows. To improve adaptational capacity of the zygotes and embryos, stringent control of the environment should be provided from the first days of sow pregnancy.
One of the major factors of successful development of pig production is the use of the world best gene bank and improvement of the methods for assessing the animal breeding value. The conducted studies provide grounds for recommending the experts of the stud farms and nucleus farms to assess and select sows using an indexing system.